Individual Calculations May 2011
 Ruan, Lufei  Total change: -1.00  Rating chartPersonal card
 12th Pittsburgh Open Pittsburgh, Pennsylvania USA 2011-03-25
 2581 2480 1.00 3 -0.10 10 -1.00 
  Onischuk, Alexander g2678 USA0.5010.26102.60 
  Gurevich, Dmitry g2475 USA0.501-0.0110-0.10 
  Shabalov, Alexander g2590 USA0.001-0.3510-3.50 

Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change)


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